Nut-lock.



E. PROUK.

NUT LOCK.

APPLICATION FILED MARA, 1912.

1,046,580. Patented Dec. `l0, 1912.

l 6*?:133 i., W g J w\.\.\.\l\.\

ff I. s 40 a 7 lf B6 Emi..

40/ gli wwwa/Mao gg, @mmv/5M. uw f GuiM/neg EUGENE FRU'K, 0F BOWIE, COLOR/ADG.

NUT-Leck.

specication of Letters Patent.

Patented Dec. 10, 1912;

Application led March 4, 1912. Serial No. 681,372.

To all whom it 'ma/yy concern:

Be it known that I, EUGENE FROUK, a citizen of the Uni 'ed States, residing at Bowie, in the county of Delta and State of Colorado, have invrnted certain new and useful Improvements in Nut-Locks, of which the following is a specification, reference being had to the .accompanying drawings.

This invention relates to improvements in nut locks and .has for its object to p rovide a simple, efficient and leasily applied device of this character whereby the nut may be securely locked upon the bolt.

Another object of the invention is toprovide a lock fornnuts consisting of a single element which may be readily disengaged from the bolt and nut so. that the nut may be removed without destroying the continued usefulness of the locking elements. A further object of the invention is to provide a very simple locking device for p nuts whichr may be manufactured at very small cost and is extremely strong and durable in practical use.

With the above and other objects inviow, the invent-ion consists of the novel features of construction, combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accom-` l v movement of the nut upon the bolt is absopanying drawings, in which- Figure 1 is a perspective view showing my improved locking device applied to a nut' or bolt; Fig. 2 is a longitudinal section; and Fig. 8 is a transverse'section taken on the line 3-8 of Fig. 2.

Referring in detail to the drawing, 5 designates a bolt having one end of its shank threaded to receive the nut 6, thelother end of said bolt'being provided with a suitable head of any desired form. While the nut shown in the drawing is of rectangular form in plan. it will be understood that my invention is also applicable to' nuts of hex-v agonal,y octagonal or any other polygonal shape. Each of the side faces of the nut 6 is provided with a shallow recess`7 and the extreme end of the bolt is provided .at diametrically opposite points with transverse grooves 8.

The locking device proper consists of a single length of resilient sheet metal 9 which in its normal condiionassumes a substantially U-shaped or 1)owed form to velement are provide the parallel yieldably spaced portions 10 which vare adapted to`be received in the shallow recesses 7 in the opposite faces of the nut 6. Upon opposite sides of the central portion 'of the plate 9 the same is provided with cut-outportions which are extended inwardly between the arms 10 and disposed in a plane at right angles thereto to form the tongues 11. These tongues are comparatively rigid and the inner ends thereof are adapted to be received in the transverse grooves 8 in the end ofthe bolt.

The locking element is applied to the nu-t and bolt in the following manner.

The spring plate 9 is disposed over the Avend of the bolt 5, the arms 10 thereof being forced apart and seated in the recesses 7 in opposite sides of the nut 6. The tongues 11 are disposed in the transverse grooves 8 of the boltwhen the arms of the locking released, the intermediate curved portion of the locking plate extending around the extremity of the bolt 5. It will be understood that the arms 10 of the lockingA plate are of sullicient length so that they will engage in the recesses of the nut andthe tongues 11 will be disposed in th grooves of the bolt, irrespective of the position of the nut upon said bolt. In this manner it will be seen that the turning lutely prevented and said nut is securely held in its adjusted position. The tongues 11 of the locking plate eifectually prevent any longitudinal movement of the spaced ends of said plate with relation to the nut 'so that the ends ofthe plate atall times remain in close clamping engagement with the sides of the nutl and seated in the recesses 7 thereof.

-From theforegoing it is thought that the construction and manner of application of my improved nut lock will be fully understood. l

The device is extremely simple and may therefore, be manufactured at small cost.

The locking elements may also be easily and quickly applied to or removed from the nut and bolt and are extremely efficient in practical use.

The locking plate may be made in various forms and siZ'es for application to various sized nuts and bolts. The invention is also susceptible -of a great' many other minor modifications which may be resorted to v verse grooves in its threaded portion at diametrically opposite points and Acontiguous to the end of the bolt, a nut threaded upon,

said bolt and having grooves in opposite faces, a locking member formed from a single length of sheet metal bent mto substantially U-shaped form and having its lntermedlate portion disposed across the end of'the bolt, the parallel arms of said lock;

ing member extending in parallel relation to the longitudinal axis of the bolt and in spaced relation to the periphery thereof, the extremities of said arms being adapted for engagement in the grooves of said nut, and tongues out out of the intermediate portion of said looking member and the arms thereof, and extending inwardly from said arms in a'plane at right angles to the longitudinal axis of the bolt, the ends of said tongues being adapted for engagement in the transverse grooves of the bolt to hold said bolt against turning. movement in the nut.

y In testimony whereof I hereunto affix my signature in the presence of two Witnesses.

EUGENE FROUK. Witnesses t C. C. HAWxINs, J. D. HAWKINS.

Copies of this patent may be obtained for five cents `each, by addressing the Commissioner of Patents,

Washington, D. CJ? 

